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比強度

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Diagram of a space elevator. At the bottom of the tall diagram is the Earth as viewed from high above the North Pole. About six earth-radii above the Earth an arc is drawn with the same center as the Earth. The arc depicts the level of geosynchronous orbit. About twice as high as the arc and directly above the Earth's center, a counterweight is depicted by a small square. A line depicting the space elevator's cable connects the counterweight to the equator directly below it. The system's center of mass is described as above the level of geosynchronous orbit. The center of mass is shown roughly to be about a quarter of the way up from the geosynchronous arc to the counterweight. The bottom of the cable is indicated to be anchored at the equator. A climber is depicted by a small rounded square. The climber is shown climbing the cable about one third of the way from the ground to the arc. Another note indicates that the cable rotates along with the Earth's daily rotation, and remains vertical.

宇宙エレベーターの仕組みと実現への挑戦地球から宇宙への新たな架け橋

宇宙エレベーターカーボンナノチューブ静止軌道遠心力
2026年8月11日続きを読む →
Color lines in a spectral range

チタンの特性と産業利用軽量・高強度を実現する次世代金属の全貌

チタン金属特性比強度クロール法
2026年8月10日続きを読む →